package com.qyer.search.service;

/**
 * Created by tangzheng on 16/6/13.
 */
public class MainDBService {
  private static class InnerHolder {
    private static final MainDBService INSTANCE = new MainDBService();
  }

  private MainDBService() {
  }

  public static final MainDBService getInstance() {
    return InnerHolder.INSTANCE;
  }
}
